Originally Posted by F1 fan
I took out the bulbs and turned them over. Put them back in an no problem so far. They did seem somewhat loose also.
Me too. I had "right brake lamp malfunction" warning popped up on and off the past week. I did the same thing and so far that warning hasn't returned. Owner's manual tells you how to get to the bulbs.
I guess there are many many M3 has bad/loose brake light bulb sockets on the right side. Or may be they didn't install those bulbs properly.